Table 2 Poisson regression analyses for female total lung cancer, AC and SCC from 2001 to 2005 based on quartiles of air pollutants between 1994 and 1998^a

SO₂ concentration (ppb)

≤ 3.74

1.00

1.00

1.00

3.74-5.52

1.09 (0.97-1.22)

1.20 (1.04-1.37)

1.39 (0.96-2.01)

5.52-7.75

1.10 (0.97-1.24)

1.22 (1.04-1.43)

1.58 (1.06-2.37)

> 7.75

1.30 (1.13-1.50)

1.27 (1.06-1.52)

1.80 (1.15-2.84)

Test for trend

P = 0.0003*

P = 0.0272*

P = 0.0145*

CO concentration (ppm)

≤ 0.55

1.00

1.00

1.00

0.55-0.72

0.97 (0.84-1.12)

0.99 (0.83-1.19)

0.82 (0.53-1.27)

0.72-0.88

1.14 (0.98-1.32)

1.09 (0.90-1.31)

1.07 (0.69-1.67)

> 0.88

1.20 (0.99-1.45)

1.18 (0.93-1.50)

0.99 (0.56-1.75)

Test for trend

P = 0.0055*

P = 0.0759

P = 0.5833

NO₂ concentration (ppb)

≤ 17.09

1.00

1.00

1.00

17.09-22.18

0.93 (0.82-1.05)

1.06 (0.90-1.25)

0.95 (0.64-1.41)

22.18-27.63

0.87 (0.75-1.01)

1.08 (0.89-1.30)

1.08 (0.69-1.70)

> 27.63

0.80 (0.66-1.08)

1.15 (0.89-1.47)

1.04 (0.57-1.91)

Test for trend

P = 0.0304*

P = 0.3175

P = 0.7259

NO concentration (ppb)

≤ 5.29

1.00

1.00

1.00

5.29-8.18

1.11 (0.97-1.26)

1.05 (0.89-1.24)

1.05 (0.71-1.57)

8.18-12.37

1.02 (0.88-1.17)

1.13 (0.94-1.36)

1.04 (0.67-1.62)

> 12.37

1.27 (1.05-1.53)

1.31 (1.03-1.66)

1.12 (0.63-1.99)

Test for trend

P = 0.0615

P = 0.0174*

P = 0.7464

O₃ concentration (ppb)

≤ 19.18

1.00

1.00

1.00

19.18-22.01

0.82 (0.75-0.91)

0.84 (0.75-0.95)

0.79 (0.59-1.06)

22.01-25.33

0.86 (0.77-0.97)

0.85 (0.73-0.98)

0.82 (0.57-1.16)

> 25.33

0.89 (0.78-1.02)

0.88 (0.74-1.04)

0.75 (0.50-1.14)

Test for trend

P = 0.1169

P = 0.1188

P = 0.2049

PM₁₀ concentration (μg/m³)

≤ 50.04

1.00

1.00

1.00

50.04-61.23

1.08 (0.98-1.19)

1.03 (0.92-1.15)

1.12 (0.82-1.52)

61.23-76.30

1.17 (1.06-1.30)

1.07 (0.95-1.20)

1.34 (0.98-1.83)

> 76.30

0.99 (0.88-1.12)

0.85 (0.73-1.01)

1.22 (0.84-1.78)

Test for trend

P = 0.3893

P = 0.1700

P = 0.1413